Author: Simon Quigley <tsimonq2@debian.org>
Description: Use the googletest provided by the archive instead of the embedded copy
Forwarded: https://github.com/jbeder/yaml-cpp/pull/1035
Last-Update: 2021-09-24

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 5ebc1a6b3..34be1fefe 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -4,11 +4,18 @@ set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
 set(BUILD_MOCK ON CACHE BOOL "" FORCE)
 set(CMAKE_POLICY_DEFAULT_CMP0048 NEW)
 
-add_subdirectory(
-  "${CMAKE_CURRENT_SOURCE_DIR}/gtest-1.10.0"
-  "${CMAKE_CURRENT_BINARY_DIR}/prefix")
-
-include_directories(SYSTEM "${CMAKE_CURRENT_SOURCE_DIR}/gtest-1.10.0/googletest/include")
+find_package(GTest)
+if (NOT GTEST_FOUND)
+    add_subdirectory(
+      "${CMAKE_CURRENT_SOURCE_DIR}/gtest-1.10.0"
+      "${CMAKE_CURRENT_BINARY_DIR}/prefix")
+    include_directories(SYSTEM "${CMAKE_CURRENT_SOURCE_DIR}/gtest-1.10.0/googletest/include")
+else()
+    add_subdirectory(
+      "/usr/src/googletest"
+      "${CMAKE_CURRENT_BINARY_DIR}/prefix")
+    include_directories(SYSTEM "/usr/src/googletest/googlemock/include")
+endif()
 
 set(test-new-api-pattern "new-api/*.cpp")
 set(test-source-pattern "*.cpp" "integration/*.cpp" "node/*.cpp")